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2 The volume of a room is 1200m3 The wall area of the room is...

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2 The volume of a room is 1200m3 The wall area of the room is 220m3 The floor area is 120 m2 and the ceiling area is 120m2 The average absorption coefficient 1 for walls is 0 03 ii for the ceiling is 0 80 iii for the floor is 0 06 Calculate the average sound absorption coefficient and the reverberation time

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